EUVD-2026-73244
GHSA-7wjj-29mx-37rj
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered file triggers UAF with no attacker auth (PR:N); user must open the file (UI:R); full CIA impact from arbitrary code execution.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution via use-after-free in Microsoft Office PowerPoint enables a network-positioned, unauthenticated attacker to execute arbitrary code on a victim's system when the victim opens a crafted PowerPoint file. The flaw spans the entire current Office product family including Microsoft 365 Apps for Enterprise, Office LTSC 2021/2024, PowerPoint 2016, Office 2019, and their Mac counterparts. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must open a specially crafted PowerPoint file using an unpatched version of Microsoft PowerPoint or any Office suite product listed above. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 score reflects a realistic threat model for a socially-engineered file-delivery attack: network-accessible, low complexity, no authentication, but requiring the victim to open the file (UI:R), which limits automated mass exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patches immediately via Microsoft Update or the Microsoft 365 update channel. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Notify all users to avoid opening PowerPoint files from untrusted external sources and brief IT operations on patch requirements affecting PowerPoint 2016, Office 2019, Office LTSC 2021/2024, Microsoft 365 Apps for Enterprise, and Mac Office. …
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
View allShare
External POC / Exploit Code
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